Carbureter.



C. R. GREUTER.

CARBURETER. APPLICATION HLED AUGFZS, 19w.

7 amvamcoz Witweooao Patented June 18, 1918. 3a SHEETSSHEET 2.

C. R. GREUTER.

CARBURETER.

APPLICATION FILED Aus.25. 19I5.

Patented Me 18, 1918..

4 SHEETS-SHEET 3.

amoemto'c lit - cation, Serial No. 47,285, filed August 25,"

GHMLJES M. GREUTEE, 01E SAUGUS, MASSACHUSETTS.

' caarnnarrna.

aeaeoa.

Specification of Letters Patent.

Patented June re, rare.

Application filed August 25, 1915. Serial No. 47,284.

To all whom it may concern."

Be it known that l, CHARLES R. GREUTER, a citizen of the United States,residing at Saugus, in the county of Essex and State of Massachusetts,have invented certain new and usefuL Improvements in Carbureters, ofwhich the following is a'specification, such as will enable thoseskilled in the art to which it appertains to make and. use the same.

This invention relates to carbureters for use 'in'connection withexplosive engines using liquid fuel and the object thereof is to providea carbureter of this class which will he e simple construction,eflicient in opera'- tion, and particularly to provide means whereby thecarbureter may be attached to either the right or the left side of theengine and will project either forward or to the rear of the manifold towhich it is attached, in order that it may be attached to all types anddesigns of engines without any special fittings, which is impossiblewith most carbureters as now constructed, because of interference by thesteering mechanism, magneto, generator, or other mechanism connected toor adjacent to the engine. These and the other objects of my inventionwill more fully appear in the following specifica tion, of which theaccompanying drawings form a part.

Certain parts of the structure illustrated in the accompanying drawingsand more or less fully described in the specification form the subjectmatter of my companion appli- 1915, for carbureters, and accordingly arenot claimed herein.

Figure 1 is a sectional elevation of my carbureter assembled forattachment to the ri ht-hand side of a motor, with the body thecarbureter projecting forward from the manifold. Fig. 2 is an elevation,partly in section, of the neck and hood, and the upper portion of thebody of the carbureter assembled for attachment to the left side of anengine, with the body of the carbureter rojecting forward from themanifold. Fig. 3 is a lan view of my carbureter assembled as s own inFig. 2. Fig. 4 isa view similar to Fig. 2, showing the carbureterassembled for attachment to the right side of an engine, with the bodyof the carbureter projecting forward from the manifold. Fig. 5 is a planview of the carbureter ascasing 1, which forms the body of thecarbureter. The body is of considerably greater length than width, andis provided with air intake openings 2 and 3, either of which is ofsufficient capacity to supply the requisite amount of air withoutcreating an undue vacuum, and with venturis 4 and 5 arrangedlongitudinally on either side of the center line X-X of the carbureterbody. Liquid fuel nozzles 6 and 7 are mounted in the venturis 4 and 5and each is in communication With the chamber 8, to which fuel issupplied from the float feed chamber 9. In the openings 10 and 11 in thewalls of the body 1, are mounted housings 12 and 13, which are securedin position by'fstuds 14 and 15. The housings are interiorlyscrewthreaded to receive the screw-threaded stems .16 of the taperedneedle valves 17 and 18,

which project into the nozzles 6 and 7, and are the means employed forregulating the fuel supply. To the upper end of the stem of the needlevalve 17 is secured a rod 19, by means of the universal joint 20, asshown in Fig. '1. Valves 21 and 22 are longitudinally movable on theguide stems 23, and determine the vacuum under which venturis 4 and 5operate.

My carbureter is alsoprovided with a hood 24, into which the venturisdischarge, and the hood is provided with a neck- 25, having a flange 26adapted to be secured to the flange on the manifold of an engine. In

the neck is mounted a throttle valve 27 on a shaft 28. On the throttlevalve shaft 28 a cam 29 is mounted, outside of the neck 25. The cam 29acts upon the cam roller 30 mounted in the lever 31, which is secured ona shaft 32 by means of the clamp screw 33. The lever 31 may be adjustedin any position on the shaft 32 by means of the clamp screw 33. Thelever 34 is permanently secured to the shaft 32 by means of the pin 35.To the lllb end of the lever 34 is pivoted a valve 36, which acts as athrottle to the veinturi 5, when the parts are assembled, as shown inFig. 1, and when the throttle valve is closed, as shown in Fig. 1, thecam 29 looks the valve 36 in the closed position. When, however, thethrottle is partially open the cam 29 ceases .to lock the valve 36 onits seat and when the vacuum in the hood has risen sufiiciently to raisethe valve 36 from its seat the venturi 5 and its nozzle 7 are throwninto action. The hood 24 is secured to the body by studs 37, which areso spaced, that the hood may be reversed so that the neck 25 will beforward or to the right of the center line of the body instead of to theleft or rear as shown in Fig. 1.

The operation of my invention is as follows:

With the carbureter assembled as shown in Figs. 1, 4 and 5, it isadapted to be attached to the right side of the engine with the bodyprojecting forward from the center of the manifold, avoidinginterference with the steering mechanismpr other parts to the rear whichmight interfere if the carbureter were centrally located with referenceto the manifold. When the conditions are such, asis often the case, thatthe carbureter, assembled as shown in Fig. 1, cannot be mounted becauseof interference from the magneto, generator or other parts, the screws37 may be removed and the hood reversed. The clamp screws 38 should thenbe released and the parts reassembled in the position shown in Fig. 6..The body of the carbureter when so assembled will project to the rearinstead of forward of the center of the manifold. When the carbureter isto be attached to the left side of an engine with the body projectingforward from the center of the manifold, the parts should be assembledas shown in Figs. 2 and 3, and when it is to be attached to the leftside of the engine with the body projecting to the rear from the centerof the manifold, the parts should be assembled as shown in Fig.7.

It will be noted from an examination of the figures that the cam 29- onthe shaft of the throttle valve 27 and the lever 31 may be mounted oneither end of their respective shafts as the exigencies of the case mayrequire, and that these parts are so designed that they may properlycoact in either position.

Having described my invention what I claim as new and-desire to secureby Letters Patent is:

1 A carbureter comprising a body having a plurality of venturis; fuelnozzles arranged to discharge into said venturis; needle valves forcontrolling said nozzles; a hood applied to the carbureter body andconstituting a chamber over the outlet ends of the two venturis; and avalve carried by valves froma fixed control station;

said head and adapted to control the outlet end of one of said venturis,said hood being reversible with reference to the body so as to bring itsdischarge opening to one or the other side of the center, and to placeits throttle valve over one or the other of the Venturi outlets at will.

2. A carbureter comprising in combination a body having two airpassages; valves in said body for controlling the supply of carburetingliquid to said passages; connections for operating a definite one ofsaid valvesfrom a fixed control station; a supporting and connectinghood for said body having a tubular neck communicating with both saidair passages and adapted for attachment to an engine intake in differentangular positions; means for connecting said body to said hood in tworelatively,reverse positions; and a valve for controlling one of saidair passages and adapted to be mountedin said hood in two relativelyreverse positions corresponding to the two positions of said body.

3. A carbureter comprising in combination a body having two airpassages; valves in said body for controlling the supply of carburetingliquid to said passages; connections for operating a definite one ofsaid valves from a fixed control station; a supporting and connectinghood for said body having a tubular neck communicating with both saidair passages, offset with reference to said hood, and adapted forattachment to an engine intake in different angular positions; means forconnecting said body to said hood in two relatively reverse positions;and a valve for controlling one of said air passages and adapted to bemounted in said hood in two relatively reverse positions correspondingto the two positions of said body.

4. A carbureter comprising in combination a body having two airpassages; valves in said body for controlling the supply of 110carbureting liquid to said passages; connections for operating adefinite one of said a supporting and connecting hood for said bodyhaving a tubular neck communicating with 115 both said'air passages andadapted for attachment to an engine intake in different angularpositions; means for connecting said body to said hood in two relativelyreverse positions; a valve for controlling one 120 of said air passagesand adapted to be mounted in said hood in two relatively reversepositions corresponding to the two positions of said body; a throttlevalve in said neck; and operative connections between 126 said throttlevalve and said air passage controlling valve.

5. A carbureter comprising a body. a plurality of venturis in the body,a Vcnturi valve adapted to cut one of the venturis out 180 eapon ofaction, a hoodl, a throttle valve carried off center by the hood,.meansoperated by the throttle valve for securing the Venturi valve in theclosecl position, means for securing the hood to the body with thethrottle valve in a plurality of positions with reference to the body,and means for assembling the means for lockingthe Venturi valve inoperative relation to the throttle valve mechanism in all positions ofthe W throttle valve with reference to the body Signed at Saugus, in thecounty of Essex and. State of Massachusetts, this 19th day of August,1915.

CHARLES R. GREU'lER. Witnesses:

FERDINAND PJELZ, Runorir E. GREUTER.

